Strong’s Greek
G2757 — kenophonia
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
κενοφωνία
kenophonia — pronounced ken-of-o-nee'-ah
from a presumed compound of 2756 and 5456; empty sounding, i.e. fruitless discussion:--vain. see GREEK for 2756 see GREEK for 5456
2 occurrences in the KJV.
1 Timothy 6:20
O Timothy, keep that which is committed to thy trust, avoiding profane and vain babblings, and oppositions of science falsely so called:
2 Timothy 2:16
But shun profane and vain babblings: for they will increase unto more ungodliness.